For which finding should the nurse notify the provider immediately in a client taking aspirin?

In a client taking aspirin, hyperventilation is a significant finding that warrants immediate notification to the provider. Aspirin, particularly in high doses or in sensitive individuals, can lead to respiratory alkalosis due to increased exhalation of carbon dioxide. This might indicate a serious reaction or an escalation of symptoms associated with aspirin toxicity or overdose.

Hyperventilation can also be indicative of metabolic disturbances, such as salicylate toxicity, where the body is trying to compensate for an acidic environment. Recognizing and responding to this symptom promptly is crucial for preventing further complications, as untreated salicylate toxicity can lead to severe complications, including central nervous system effects and decreased level of consciousness.

Other options such as heartburn, anorexia, and swollen ankles, while potentially concerning, do not present the same level of urgency as hyperventilation. These symptoms could be associated with common side effects of aspirin or other underlying issues that may not require immediate medical attention. Therefore, the presence of hyperventilation stands out as the most critical finding in this scenario.